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advanced_tools:gauge_symmetry [2018/05/15 07:02] jakobadmin [Intuitive] |
advanced_tools:gauge_symmetry [2018/07/24 10:20] 129.13.36.189 [FAQ] |
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- | --> What conserved quantities follow from gauge symmetries?# | ||
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- | Using [[theorems:noethers_theorems|Noether's first theorem]] we find that the conserved charges that would follow from invariance under gauge transformations are identically zero. This is shown, for example, in section 3.4.1 [[http://math.ucr.edu/home/baez/classical/texfiles/2005/book/classical.pdf|here]]. | ||
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- | However, using Noether's second theorem we can derive relations between our equations of motion, that are known as Bianchi identities. | ||
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- | <-- | ||
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--> Is a gauge symmetry really a symmetry?# | --> Is a gauge symmetry really a symmetry?# | ||
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+ | --> What conserved quantities follow from gauge symmetries?# | ||
+ | Using [[theorems:noethers_theorems|Noether's first theorem]] we find that the conserved charges that would follow from invariance under gauge transformations are identically zero. This is shown, for example, in section 3.4.1 [[http://math.ucr.edu/home/baez/classical/texfiles/2005/book/classical.pdf|here]]. | ||
+ | |||
+ | However, using Noether's second theorem we can derive relations between our equations of motion, that are known as Bianchi identities. | ||
+ | |||
+ | |||
+ | <-- | ||